20816

Names of 20816

• Cardinal: 20816 can be written as Twenty thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 2.0816 × 10⁴

Factors of 20816

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 1303

Divisors of 20816

• Number of divisors d(n): 10
• Complete list of divisors:
  1 2 4 8 16 1301 2602 5204 10408 20816
• Sum of all divisors σ(n): 40362
• Sum of proper divisors (its aliquot sum) s(n): 19546
• 20816 is a deficient number, because the sum of its proper divisors (19546) is less than itself. Its deficiency is 1270

Bases of 20816

• Binary: 101000101010000₂
• Hexadecimal: 0x5150
• Base-36: G28

Squares and roots of 20816

• 20816 squared (20816²) is 433305856
• 20816 cubed (20816³) is 9019694698496
• The square root of 20816 is 144.2775103751
• The cube root of 20816 is 27.5084271693

Scales and comparisons

• 20,816 seconds is equal to 5 hours, 46 minutes, 56 seconds.
• To count from 1 to 20,816 would take you about five hours.

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 20816 cubic inches would be around 2.3 feet tall.

Recreational maths with 20816

• 20816 backwards is 61802
• The number of decimal digits it has is: 5
• The sum of 20816's digits is 17
• More coming soon!